Category Archives: Equipment
Repeater CSV Files for Icom Radios
One of the most useful features of modern Icom radios is the ability to find local repeaters using the built-in GPS receiver, but programming those repeaters can be onerous since few sources include the all-important LAT and LON coordinates.
Kudos to Mark M0LXQ whose CSV generator covers a range of formats and even allows you to insert a column containing distance from your own QTH, so you can manually sort the and limit the entries by distance from a given locator before importing the file into the radio.
If you’re new to this it’s worth mentioning that on the ID-52 / ID-50 (possibly others) you need to import the files into the repeaters list, not the regular memory in order to use the GPS function.
Wide-Banding / MARS Mod for ID-52
The last time I took my Icom ID-52E with me to North America I wasn’t able to access any repeaters due to the US having different amateur frequency allocations on 2m and 70 cm, which my European spec radio couldn’t transmit on. Schoolboy error.
Continue readingIcom IC-7300 Battery Replacement
With my 7300 now over 2 years old the internal battery was well and truly knackered, failing to keep the clock powered for more than a few minutes off the power supply. Time to put on my Big Girl Pants and dig out that soldering iron.
Continue readingHubnet Repeater List for Quansheng UV-K5
A couple of days ago I sat down and programmed all Hubnet repeaters and gateways into my Quansheng UV-K5 via Chirp, taking the details from ukrepeaters.net to make sure everything’s fresh.

In the spirit of sharing I’m making this file available for download as a Chirp IMG file as well as CSV. If you’re grabbing the former then I’d advise you to download data from your radio first before pasting in the repeater list, then re-uploading the file from your radio. Like most people I’m using custom firmware and taking this approach minimises the chances of you importing something other than the list of repeaters and gateways. The usual caveats apply…
“Cannot create unknown radio component”
Getting Motorola CPS to run on recent Windows in VM
I’ve had some difficulty in getting my Windows 10 virtual machine to run the CPS software from Motorola which I need in order to program a GM340 for an upcoming project, and thought I’d document the steps taken in case it helps somebody else. The general feeling appears to be that you need an older version of Windows like XP, and/or a physical machine, but with a few tweaks you can convince the CPS to run in a Windows 10 VM, in my case Parallel Desktop on MacOS. Here’s what I did:
Continue readingGranted NOV for MB7IOM Gateway
Took a little bit of back-and-forth with the ETCSS in order to get this one over the line, and I’m not exactly sure when the process completed, but I thin I started it around the 18 April 2023. The idea was to create an internet-linked gateway which could be controlled by local users, with various DTMF link codes maintained on QRZ.
New Antenna for Home QTH
Ever since picking up my IC-705 in October 2021 I’ve been dining out on location rather than configuration, at least where the home antenna is concerned; a random-length end-fed with a 49:1, slung up into a tree next to the shack. I’ve had some pretty good contacts using this setup, working QRP far into Europe and occasionally pinging the ding-dong repeater in New York on 10m, but it was always a suck-it-and-see first attempt, a cheap way of finding out which bands I want to focus on before spending more money. I was still chasing my first transatlantic contact when I heard Russ VE9FI one evening in December but, unable to work him on my EFLW I quickly uprooted the IC-705 to the back patio, where my home made EFHW was doing WSPR duty. Blow me if I didn’t get an S5/5 @ 5W, nearly three thousand miles across the pond, on battery power.
An obvious solution would be to throw some more power down the wire, but at the back of my mind it was clear that the wire was the problem. And the power. But mostly the wire. So here I am two months later, with some very nice fibreglass poles and a hastily flung resonant 80m HW, buzzing with excitement at the changes brought about by some fairly simple guying.
Yesterday’s initial attempt at stringing the 40m long stealth wire across the garden in a rotated L configuration produced more of an inverted V, thanks to the luxurious flexibility of my new poles, but adding some guy lines today actually enabled the vertical part to be truly vertical, and I think that’s what’s made the difference between the RF fizzling out at the horizon and providing a truly great take-off angle. All I know for sure is that I’ve not had any WSPR spots from Central America, West Coast US, or China until today.
Going forward I’ll probably add a second 2-section pole to hold the blunt end of the wire, replacing the far too flexible single section that I used as a stop-gap in fading light yesterday.
Ordered Icom IC-7300
Another Go with 20m EFHW
I’ve now had three outings with my first self-built HF antenna, an end-fed half-wave on 20m twirled around a 10m squid pole. The main reason for this design was that I’ve got easy access to the kind of salty beaches that are supposed to work well as groundplanes, but with weather being what it is right now I’ve not had much of a chance to get out.

Today could have been such a day, but instead I decided to work portable from the car, perching myself on the Druidale Road above Ballaugh. There was zero noise floor and I was able to work pretty much every station I heard at 10W, with many of them giving me better reports than I was able to give them. The Swiss guys in particular were very strong with me, sounding as clear and loud as traffic on the local repeater.
| DA22WRTC | Wangen, Germany | 20m | S5/9 @ 5W | |
| HB9GVW | Hans-Martin | Burgdorf, Switzerland | 20m | S5/5 @ 5W |
| EI3ISB | John | Dubli, Ireland | 20m | S5/5 @ 5W |
| SM5ZCJ | Dirk | Finspong, Sweden | 20m | S5/9 @ 5W |
| OH3GZ | Jack | Toivakka, Sweden | 20m | S5/7 @ 10W |
| F1GOW | Jean-Marc | Nancy, France | 20m | S5/5 @ 10W |
| DK5KN | Rudi | Königswinter, Germany | 20m | S5/9 @ 10W |
| SD7X | Jorg | Sweden | 20m | S5/5 @ 10W |
| DL7GP | Achim | Berlin, Germany | 20m | S5/9 @ 10W |
| GI0AQD | David | Portavogie, Northern Ireland | 20m | S5/8 @ 10W |
| DL1ROT | Thomas | Berlin, Germany | 20m | S5/6 @ 10W |
| DH0GME | Elmar | Villingen, Germany | 20m | S5/7 @ 10W |
| SQ3SHI | Mek | Grabow, Poland | 20m | S5/9 @ 10W |
| HB9SHI | Daniel | Gruet, Switzerland | 20m | S5/8 @ 10W |
| HB9BFY | Peter | Gossau, Switzerland | 20m | S5/9 @ 10W |
| IN3HUY | Giorgio | San Bovo, Italy | 20m | S5/9 @ 10W |
| DK1MHW | Hans | Altoeting, Germany | 20m | S5/5 @ 10W |
| SP8DR | Darek | Lubelski, Poland | 20m | S5/5 @ 10W |
| IU2PKQ | Simo | Bareggio, Italy | 20m | S5/9 @ 10W |
| F/DL4FLY | Timm | Karlsruhe, Germany | 20m | S5/5 @ 10W |
There was a strong temptation to hang on a few hours and wait for the long skip to come in, but temperatures had dropped to 4℃ as the sun went down and I didn’t relish taking everything down without gloves and a torch. Maybe next time.